public void Factorial_WhenPassedZero_Returns1()
{
var result = RecursiveFunctionFunctions.Factorial(0);
Assert.AreEqual(1, result);
}
public void Factorial_WhenPassedNegativeValue_RaisesArgumentException(long inputValue)
{
Assert.That(() => RecursiveFunctionFunctions.Factorial(inputValue), Throws.ArgumentException);
}
public void Factorial_WhenPassedPositiveValue_ReturnsFactorialValue(long inputValue, long expectedValue)
{
var result = RecursiveFunctionFunctions.Factorial(inputValue);
Assert.AreEqual(expectedValue, result);
}
